Review of Current Coal Rib Control Practices

Details

• Personal Author:
  Guner D ; Mohamed K ; Nowak S ; Sherizadeh T ; Sunkpal M ; Xue Y
• Description:
  The instability of coal ribs in underground mines continues to result in the injuries and fatalities of mine workers. The proper estimation and evaluation of primary and secondary support for coal ribs is still a challenging problem in the field of ground control science and requires further research and study. Although mining operations have various support design criteria and support methodologies for strata control, most rib support designs are still based on experience and local practices. This review study is intended to summarize the currently applied practices for rib support and control in various countries and mining conditions. Firstly, critical parameters that control the amount and type of required rib support are considered and evaluated. The study revealed that among these parameters that control the stability of coal ribs, mining depth, rib height, cleat orientation/condition, and coal strength are the most significant parameters. Secondly, current rib support application methods were also summarized. Similar to rock mass classification systems, some studies proposed a rib control rating system for practical estimation of the current rib condition and to estimate primary support requirements. These studies are classified and summarized into two groups (categorical and empirical) based on the required inputs and methodologies. Empirically based coal rib rating systems were closely examined, and the usefulness and intuitive aspects of each rating system were compared. This comprehensive literature review demonstrates that the Australian rating system, Analysis and Design of Rib Support (ADRS), and the new U.S. rating system, Coal Pillar Rib Rating (CPRR), are highly applicable for their regions. Description provided by NIOSH
• Subjects:
  • Coal
  • Coal Mining
  • Mining
  • Occupational Health
  • Safety
• Keywords:
  • Underground mining
  • Coal mining
  • Strata control
  • Rock mechanics
  • Pillar mechanics
  • Ground control
  • Roof supports
  • Author Keywords: Coal rib
  • Ground control
  • Rib support
  More +
• Series:
  Mining Publications
• ISSN:
  2467-9674
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Missouri ; OSHA Region 3 ; OSHA Region 7 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  53-75
• Volume:
  9
• NIOSHTIC Number:
  nn:20066347
• Citation:
  Undergr Space 2023 Apr; 9:53-75
• Contact Point Address:
  Taghi Sherizadeh, Department of Mining and Explosives Engineering, Missouri University of Science and Technology, Rolla, MO 65409
• Email:
  sherizadeh@mst.edu
• Federal Fiscal Year:
  2023
• NORA Priority Area:
  Mining
• Peer Reviewed:
  True
• Source Full Name:
  Underground Space
• Download URL:
  https://stacks.cdc.gov/view/cdc/215616/cdc_215616_DS1.pdf
• File Type:
  [PDF - 3.53 MB]
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:26600c0dc3ccbf3cb3f18813685c8ff27bc2fc14ba1d9f697351a739265852e3e644b474f07e15a991db29a432584cf47d5bccd2021fec5371f8f9ea04fd78f5